Steam-boiler feed



June 14,1927.

N. E. LEWIS STEAM BOILER FEED Filed May 1923 Patented June 14, 1927.

UNiTEi) STATES PATENT OFFEQE.

NATHAN E. LEWIS, OF PLAINFIELD, NEW JERSEY, ASSIGNOR TO THE BABCOCK &WILGOX COMPANY, OF BAYONNE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

STEAM-BOILER FEED.

Application filed May 5,

My invention consists of certain novel parts and combinations of partsparticularly pointed out in the claims.

The following is a description of asteam boiler feed embodying myinvention in the form at present preferred by me, but it will beunderstood that various modifications and changes may be made thereinwithout departing from the spirit of my invention and without exceedingthe scope of my claims.

My invention will best be understood by reference to the accompanyingdrawings, in which Figure 1 is a side view, partially in section of asteam and water drum with the feed connections thereto, and Fig. 2 is asectional view taken on the plane of the line 22 of Fig. 1.

Like reference parts throughout Referring now to the drawings, is asteam and water drum for a steam boiler provided with end walls 11 ofusual construction. A feed pipe 12 is located within the drum andextends longitudinally thereof, the same preferably passing through theends of the drum, as at 13.

The feed water is introduced to the boiler from each end of the feedpipe. The ends of the feed pipe 12 which pass through the openings 13 inthe ends of the drum are preferably screw-threaded, as at 14-, and eachis received within a screw-threaded opening in a connecting headindicated, generally, 15 and comprising a plate 16 engaging the end 11of the drum, the connecting member 15 also being provided with a flange17 to which is secured a similar flange 18 on a valve head 19 providedwith a valve (not shown) which is controlled by a hand wheel 20. Thefeed water is supplied to the right-hand end of the feed pipe 12, asviewed in Fig. 1, through a feed pipe 21. The feed connections at theopposite end of the boiler characters indicate like the drawmgs.

may be the same as those described for the connections at the right-handend-of the boiler, and need not be specifically referred to. Either thefeed pipe 21 at the right or the feed pipe 22 at the left may be theregular feed line, while the other pipe may be the auxiliary feed line,so that either feed line may be used in case of breakdown in the other,or if it is desired to use them alternately, although both may be usedat the same time, if desired. I have illustrated feed pumps 210 and 220for forcing 192s. seriai No. 636,839.

feed water through the respective pipes 21 and 22 int-o the respectiveends of the feed pipe 12.

The feed pipe 12 is preferably divided at an intermediate point, as at23, into two sections 121 and 122, the two sections being 25 extendingtransversely of the drum and attached thereto by angle plates 26. Thesections of the feed'pipe are preferably suspended from the members 25by straps 27.

The feed pipe is provided, preferably on its upper side, with aplurality of openings 28, as indicated in dotted lines in Fig. 1, andthrough which the water flows to the boiler. These openings may besuitably arranged to provide a substantially uniform distribution ofwater throughout the length of the drum. In addition to the advantagespointed out above, the deposition of mud in the feed pipe at the endaway from the feed connection maybe eliminated by using the feed fromopposite ends alternately.

I claim:

1. In combination, a drum for a steam boiler, a feed pipe extendingthrough said drum and projecting through the ends thereof, means forforcing feed water to each end of said pipe, and means for dischargingthe water from said pipe at a plurality of points longitudinally thereofinto the drum.

2. In combination, a drum for a steam boiler, a feed pipe located withinsaid drum and provided with a plurality of openings longitudinallythereof, and means for forcing feed water to each end of said feed pipe.

3. In combination, a drum for a steam boiler, a feed pipe located withinsaid drum and passing through both ends thereof and provided withopenings on the upper side thereof, means for forcing feed water to eachend of said pipe, andmeans for con trolling the amount 'of feed waterforced into each end of said feed pipe.

4. In combination, a drumfor a steam lllt) boiler, 21 pipe locatedWithin said drum, means for introducing feed Water to each end of saidpipe, said pipe comprising two longitudinally spaced sections connectedby a sleeve embracing the facing ends 01' said sections and secured toone only of said sections.

5. In combination, a drum for a steam boiler, a feed pipe extendinglongitudinally of the drum and divided at an intermediate point to formtwo sections, and supporting means for said sections secured to the drumand extending transversely thereof, and means tor forcing feed waterinto each end of said pipe. 7

(5. In astezun boiler, a steam and Water drum, a feed pipe passingthrough both ends of said drum and throughout the length thereof, saidfeed pipe comprising two spaced sections and a sleeve in which the ends01 said sections are received, means for forcing "feed water into eachend of said feed pipe, means for controlling the amount of Water forcedinto each end of said pipe, and means for discharging the Water fromsaid pipe at a plurality of points longitudinally thereof into the drum.

'1'. In nstezin'i boiler, a steam and Water drum, a feed pipe passingthrough both ends of said drum and throughout the length thereof, saidfeed, pipe being divided into sections, means for forcing feed waterinto each end of said pipe, and means comprising a flanged connectionfor each section of feed pipe outside of the drum whereby each sectionmay readily be removed through the end of the drum.

NATHAN E. LEW IS.

